Home / 20,507.20-30,756.48-7,360.32

Finding the Fourth Proportional to 20,507.20, 30,756.48 and 7,360.32

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Solution

The fourth proportional to 20,507.20, 30,756.48 and 7,360.32 is: 11,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.20 : 30,756.48 = 7,360.32 : x
  2. Step 2: Convert to fraction form
    20,507.20/30,756.48 = 7,360.32/x
  3. Step 3: Cross multiply
    20,507.20x = 30,756.48 × 7,360.32
  4. Step 4: Simplify right side
    20,507.20x = 226,377,534.87
  5. Step 5: Solve for x
    x = 226,377,534.87/20,507.20
  6. Step 6: Final answer
    x = 11,038.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.